The initial installment, which premiered on television Sunday night, can now be seen on Hulu Plus.
Set in 1940s New Mexico, the series follows a group of scientists working on the first atomic bomb. It stars John Benjamin Hickey, Olivia Williams, Daniel Stern, Ashley Zukerman and Rachel Brosnahan.
"After seeing the episodes, and enjoying every minute, I knew this series represented the kind of high-quality, addictive programming that we strive to bring to Hulu," Craig Erwich, Hulu's senior vice president and head of content, said in a statement. "That's why this deal marks the first time that Hulu has committed to a series before a single episode had even aired."
"The speed with which we were able to launch a second window deal is a testament to three factors -- the willingness of our entrepreneurial partner Hulu to join us in embracing new approaches to our business, the tremendous quality of our ensemble cast, creator Sam Shaw and director Thomas Schlamme, and the enormous critical acclaim with which the series has been received," said Kevin Beggs, chairman of Lionsgate Television Group, which produced the series. "Manhattan is shaping up to become another proud entry in our tradition of ground-breaking television series with enduring value."
"We're delighted to extend a partnership with Hulu that should help further expand the audience for this deserving show," said Lionsgate President of Worldwide Television and Digital Distribution Jim Packer. "We believe that this innovative arrangement will be a win/win/win for Lionsgate, our partners and, most of all, our audiences."